My therapist hasn't shared much about herself beyond a few minor details about her current life. I like seeing small glimpses of her beyond my time in her office, but I don't feel any pressing need to know anything major at this point, like why she became a therapist or what kind of issues she's struggled with.

I think a therapist having gone through the same thing as you is kind of overrated, anyway. It's understandable that people crave that, but I don't believe it leads to any greater chance of success or even a better relationship with your T necessarily. I had one counsellor that I suspect did struggle with kinda similar things to me, and he made some incorrect assumptions about me - what specific situations I had a problem with and why, what I needed to do to improve - and didn't seem to hear a word I said when I tried to explain myself. People whose problems fall under the same label will likely still have some important differences, and no matter what, a therapist will need to be able to hear and understand people who experience life very differently than they ever did.

My therapist has shown that she's able to hear and understand me - not perfectly all the time, but better than I'd hoped for - and I'm satisfied with that. Whether she's gone through similar experiences or not wouldn't change that.